Scrubbing-machine.



J. M. DOHERTY.

SCRUBBING MACHINE.

APPLIGATION FILED JAN. ze, 1911.

1,040, 1 72, v Patented Oct. 1, 1912.

2 SHEETS-SHEET 2.

Susu/Lto@ wwe/Mw LOHN DOHER 'Py COLUMBIA PLANDGRAPH En., WASHINGTON, D.C.

UNITED STATES PATENT OFFICE. 'i i JOI-IN DOHERTY, OF MUNSON, ALBERTA,CANADA.

scRUBBiNG-MACH'INE.

Specification of Letters Patent.

Patented Oct. 1,1912.

Application led January 26, 1-911. Serial No. 604,864.

ToaZZ whom it may concern: f1

l Be it known that I, Jol-IN M. DOHERTY, a subject of the King ofEngland, residing at Munson, in the Province of Alberta, Dominion ofCanada, have invented certain new and useful Improvements in Scrubbing-Machines; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the saine.

This invention relates to scrubbing machines and has for an object toprovide a device of this character that will have novel reciprocatingscrubbing brushes that may be readily converted into driers.

A further object of the invention 4is to provide a novel mechanism forreciprocating the' brushes, this mechanism being easily thrown in andout of gear with the ground wheels.

A still further object of the invent-ion is to provide a detachablereservoir that may be manipulated to direct a stream of water in anydesired direction.

With the above objects in view the invention consists in the nove-ldetails of construction and combination of parts hereinafter u 1attheir' opposite ends to the front bar 23 Iand foremost of the crossbraces 31,'and

fully described and claimed, it being understood that variousmodificationsA may be made in the minor details of construction withinthe scope of the appended claims.

In the .accompanying drawing formingv partof this specification, Figure1 is afplan view of the device, Fig. 2 is a side elevation of thedevice, Fig. 3 is an enlarged longitudinal sectional view taken on theline 3-3 Fig. 1, Fig. 4 is an enlarged cross sectional view taken online 4-4 Fig. 1, Fig. 5 is a fragmentary view through the clutch.

Referring now to the drawing in which like characters of referencedesignate similar parts in the various views, 10 designates an axle, theopposite ends of whichV are equipped with ground wheels 11. The axle isincased in a sleeve 12 which does not rotate with the axle and to whichis iixed the side bars of a handle frame 13. The sleeve 12 is made insections to permit of a bevel gear 14 being slidingly tted on the shaft,this bevel gear being mounted for rotation with the shaft by mea-ns of aset screw 15 projecting into a slot 16 vformed longitudinally in theshaft. The gearis provided in its hub with a peripheral groove 17, intowhich loosely fits a finger 18 carried by a lwith ajournal box 26.

sleeve 12.

sleeve 19 which is mounted for sliding movementon one of the sections ofthe sleeve 11 by means of a set screw 2O projecting into a longitudinalslot 2l formed in this secs n u tion. By manually sliding the sleeve 19or 1 clutch as it may be called the gear is thrown into and out of meshwith a hereinafter described brushl actuating mechanism.

A skeleton frame projects .forwardly from o n n n the axle, t-his framecomprising a sidebar V22, a `frontbar 23 and a stub side bar 24, the

latter. terminating in a vertically disposed elliptical loop 25 whichisequipped axially A driven shaft 27 is arranged in parallel;l ism withthe side bar 22 and is journaled 'near'its forward end in the journalbox 26,

32fwhich receive the intermediate portion ofy Ithe driving shaft. 4 Apair of longitudinal braces 33 are fixed these longitudinal braces areprovided inter; mediate their endswith alined journal boxes 34,thesejournal boxes' alining with a jouri nal box 35 carried by the sidebar 22.' A rod 36 is loosely fitted in the 4alined journal boxes andterminates at one end in the yoke 37 which pivotally receives one end ofa pitman 38, this pitman being connected to the crank pin 30. As thedriven shaft rotates, the rod 36 will be reciprocated through theinstrumentality of the pitman.

Mounted on the sliding rod 36 is a pair of brushes or brooms 39, and aseach broom and its mountings is identical in construction but one willbe described. An approximately rectangular bracket 40 is provided with atransverse orifice 41 of sufficient size to loosely receive the slidingrod, and is further provided with a vertically disposed socket 42 thatreceives the stem 43 of the broom. Set screws 44 are threaded into thebracket and serve to lock the bracket to the sliding rod and the broomto theV bracket. By unloosening the broom set screw, the broom may berotated so as to bear on .the floor entirely in a line parallel tothelonthe bracket set screw the bracket may be ro-l gitudinal axis ofthe supporting frame or. may be rotated to `any angular positionvtransversely of this axis. By unloosening tated upon the sliding rod soas to cause the broom to incline to any desired position to the surfacebeing scrubbed.

A shallow pan 45 is riveted or otherwise fixed at its center to thepointof intersec? tion of the rearmost cross brace 31 and a longitudinalbrace 46 which is secured at its opposite ends 'to the axle sleeve andfore most of the cross braces. This pan loosely receives a bucket 47having a spout 48 in which is located a slide valve 49 that regulatesthe discharge of water from the bucket or reservoir as it may be called.The reservoir may be rotated in the pan so as to direct the position .ofthe spout in any `desired directionso that the flow therethrough will bedirected against any desired portion of the surface being scrubbed. Apair of` handles f 50 are fixed to the reservoir and form means forremovingv the reservoir from its supporting pan when necessary.

For supporting the free end of the skeleton frame a caster 51 is securedto the lower 'portion yof the elliptical loop 25, and another caster 52is secured to the opposite side of the skeleton frame diametricallyopposite the caster 51. These casters permit of ythe machinebeingreadily guided over the surface to be scrubbed and hold the freeend of the frame spaced a constant distance from 4this surfacel so thatbrooms may be adjusted to bear withV any desired force against thesurface.

` Itv will be noted that the brooms are disposedbroad'side to thelongitudinal axis of opie: o'f lthis patent may be obtained for theskeleton frame. In this position the brooms act as scrubbers. By givingthe brooms a half turn in their sockets they will be disposed broadsideto the cross axis of the frame and in this position act as driers. Itwill be observed that when the brooms are in position tov serve asdriers, whereby rotating the brackets to any desired extent lon thesliding rod, the brooms will be inbar .equipped with a verticallydisposed closed loop, a driving shaft having a disk within said loop, apitman on said disk, a reciprocating rod connected to said pitman andextending at a right angle to said side bar, Aa rotatable bracket 0nsaid rod, a broom having a stem loosely fitting in said bracket, and setscrews adjustably securing said bracket to said rod, and said stem tosaid bracket.

In testimony whereof, I aiix my signa-- of two witnesses. JOHN M.DOI-IERTY. i' Y Vitnesses I-I. L. MAGEE,

E. FEURT.

ture, in presence ve cents each, by addressing the Commissioner ofPatents, Washington, I). C.

